Editing Posterization (section)

== Applications ==
Typically, posterization is used for tracing [[contour line]]s and [[Image tracing|vectorizing photo-realistic images]]. This tracing process starts with 1 bit per channel and advances to 4 bits per channel. As the bits per channel increase, the number of levels of lightness a color can display increases.

A visual artist, faced with [[line art]] that has been damaged through [[JPEG]] compression, may consider posterizing the image as a first step to remove artifacts on the edges of the image.{{citation needed|date=March 2025}}

Studies show that using posterization can significantly improve the ability to locate landmarks or subjects in outdoor photography.<ref name=":0" />